The full station is a high-technology measurement instrument that integrates light, machine and electricity and automatically records and displays readings by artificial optical microreading over a number of generations, which simplifys the detection of angles and avoids error in readings. There are extensive applications in the field of precision engineering measurements or deformation monitoring, such as large buildings and underground tunnel construction. The following is a compilation of a series of videos on how the entire station is measuring altitude, basic structures, methods of use, maintenance and prospects for future development。
How to measure altitude:
1. Stations are set up at will, of course, in order to be flattened, even if the rear view is not required
See any point known to be high, such as point a, with an altitude of 3. 00 m (at this point you do not have input meters and prisms, possibly with previous instrument heights and prisms)
3. First, no controls high, the prism high has a scale on the prism pole, which can be read directly, and the prism high may be entered, or the prism height may not be modified, but it cannot be removed at will at the back
Pointing to the prism centre on point a, the measurements will show an inaccurate coordinates and a high range, which do not concern it, as no plane position is required
5. The height of point a shown at this time is an inaccurate value, such as 4. 05 m, or other values, which, in short, minus the actual altitude of point a, such as 4. 05-3. 00 = 1. 05 m
6. Aim at the prism centre on point a and measure, which shows the precise height of point a at 3. 00 metres. If any other point is measured, the higher range is more accurate, the error is the error in the instrument's standard measurements and the error in the steel meter is reduced。
All station structure:
The construction of the whole station is an integrated structure, as shown in the figure below, using the same telescope and the same microprocessing system, such as an agular ranging, with a set of keyboards and liquid crystal displays on the left and right of the disk to facilitate operations. There is a serial signal interface below the base for data interchange between the instrument and the external device, which shows an agular accuracy of ±2 and a distance accuracy of 3 mm ‖2ppm. D.
Full station method:
1. Select two known points, one as a station and the other as a rear-view point, with clear indications
2. Take out the full station, where the instrument is placed at the station where it is known to be, and perform high-level extraction of the medium-to-total mass
3. Placing the prism behind the point of view, turning the full station, and directing the all-station crucifixion centre towards the prism centre
4. Opens the whole station, selects the " program " for the program interface, selects the " coordinate sample " , enters the " coordinate sample interface " , selects the " set orientation angle " , enters the node count, enters the node coordinates and the height, enters the post-vision node interface after determination, sets the node count, enters the node after confirmation of the full station to the prism centre and enters the node coordinates and the high range, determines the post-eject direction interface and selects " yes "
5 and then enter the setting of the sample interface, first enter the instrument high, then the point is determined, then the sample node is entered, then the sample coordinates and the height are entered after determination, and then the prism height is entered after determination, at which time the sample parameter setting is completed and the sample is started to sample
6. Select the "angular" angle in the sample interface, adjust the entire station monitor to zero by moving the dhr parameter to zero, and fix the whole station monitor horizontally to pull the spiral, and then direct the prism to position the whole station on the right side of the whole station, adjust the whole station to the vertical brake spiral and the vertical micropulsive spiral to keep the whole station cross at the centre of the prism, at which point the prism is located on the line between the whole station and the drop point, and then enters the distance adjustment mode, and if the dhd is negative, the prism needs to move away from the full station and vice versa, towards the approach of the whole station until the point where the value of dhd is zero-time prism is located, marking the point, marking the first drop point at the end, and then entering the next sample set and sample at the end of all drop points
7. Turn off the equipment after the exit procedure, pack the equipment and finish the sample。
Full station maintenance:
1. Check the rectangular belts and the strength of the lifting hands before starting work
2. Before removing the instrument after opening the box, it is necessary to determine the manner and location in which the instrument is placed in the box. When handling the instrument, you must hold the lifting hand and hold the instrument's hand and lower seat and not hold the display unit. The lenses of the instrument are removed, or the internal fixed parts are affected, thereby reducing the precision of the instrument. The instrument shall be held in the base section, or in the lower part of the telescope's leg with both hands. The instrument is used to cover the mirrors and remove the dust from the surface. (b) all parts of the place should be placed in the box and should be made accessible by filling the cover
3. Observation instruments in the light of the sun should be umbrellaed and shaded so as not to affect the accuracy of the observations. In a disorderly environment, the instrument should be specially guarded. When the instrument is placed on a smooth surface, three feet of the tripod should be linked together with a line (or lead) to prevent slippage
4. Optical elements shall be kept clean and, for example, dusted sands shall be wiped off with a brush or soft mirror paper. It is prohibited to touch the surface of any optical element of the instrument by finger. When cleaning the instrument's lens surface, please wash the dust with clean brushes, and then swirl alcohol with clean wireless cotton cloth from the lens centre into the outer circle. Remove the dust from the instrument case and do not act as any diluent or gasoline, and apply a neutral detergent to clean sheeting
5. Work in a damp environment, after which operations are completed, with a soft-clothed dry instrument surface moisture and dust in boxes. Immediately upon return to the office, the equipment was removed and placed in the drying area, completely cooled and then loaded。
The future of the whole station:
The highest accuracy in the world is full station: an agular accuracy (one return direction standard deviation) of 0. 5 seconds, ranging precision of 0. 5 mm + 1 ppm. Using atr (auto targets recognition, automatic target identification), both day and night work (without light). The whole station has reached incredible angles and accuracy of distance measurements, both manual and automated, which can be operated remotely remotely and under the control of on-board applications, and can be used in applications such as precision engineering measurements, deformation monitoring, and almost non-permissible mechanical guidance controls. The agular system of the full station is compared with that of the full station of the traditional optical and latitudinal systems at different points: first, the traditional optical disk is replaced by an absolute coding disk or by a optical increase encoder; second, the traditional optical microscope is replaced by an electronic subdivision system; and second, the traditional observation and manual records are translated into direct reading and automatic recording by observers. In future times, the status of the entire station cannot be diminished。
This is how the entire station, which you are presented with, is measuring altitude, basic structure, methods of use, maintenance and future prospects. The use of full-station devices has resulted in the automation of field records, reduced recording errors and significantly improved the efficiency of field operations。
Note: all the graphs in the article reproduce pictures on the internet, torts are deleted
